How should one understand positive and negative?
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The set value is sent to the summing point with a positive numerical value, while the measured value is also sent to the summing point with a negative numerical value.
What does \"summing point\" refer to? Is its function to compare set values with measured values? Set to positive for retrieval, negative for measurement; the sum gives the difference o.o
The set value is sent to the summation point as a positive numerical value, while the measured value is also sent to the summation point as a negative numerical value.
positive: a positive value, a number greater than zero. Negative: a negative value, an integer less than zero.
The meanings of positive and negative! That’s all there is to it!
Reply 1# yaozhiqing positive numerical value: positive value； Negative numerical value: a negative value. This passage is probably about automatic control systems – negative feedback: “The setpoint is sent to the summing point as a positive value, while the measured value is sent to the summing point as a negative value.””
The set value is taken as a positive number, while the measured value is taken as a negative number; both are sent to the summation point, where the deviation between the actual value and the set value is calculated